Bristle

Bristle analyzes your oral microbiome to help you measure, understand, and improve your oral health. There has not been a way to measure oral health.

Our mouths are the gateways to our bodies and play a critical role in our overall health. Oral disease like cavities and gum disease are tied to increased risk for conditions including Alzheimer's, diabetes, and heart disease. Dental care today revolves around diagnosing and treating oral disease but does little in the way of prevention and whole-body health. Bristle analyzes the oral microbiome - the makeup of bacteria, fungi, and viruses in saliva - to measure oral health status. Some of these microbes are helpful, and contribute to good oral health while lowering our risk for disease. Other microbes are harmful, directly or indirectly leading to oral and systemic disease. Our test provides you with direct insight into your oral health and risk factors for disease. Based on other factors including your medical history, diet, and hygiene, we pair you with personalized recommendations focused on repairing and maintaining balance in your oral microbiome. We believe that improving oral health is a fundamental step towards improving overall health - and we'd like to help you get here.

09/10/2026

Ignore the bleeding gums and food debris 😂

07/30/2026

SALE: Save 15% on everything storewide, including the Oral Health Test and Oral Health Probiotic. Use code SUMMER15 at checkout for a fresher, healthier smile all season long 🌴

02/19/2026

New research out of NYU found that specific oral bacteria and fungi in saliva were linked to more than a 3x higher risk of pancreatic cancer.

In one of the largest studies of its kind, scientists followed over 120,000 people and identified microbial patterns years before cancer developed. Many of these microbes are associated with gum disease and chronic inflammation and some were even found inside tumor tissue.

This doesn’t mean oral bacteria directly cause cancer. It highlights how powerful the oral microbiome is as an early window into systemic health.

Your mouth isn’t separate from the rest of your body. It’s deeply connected.

Inflammation HealthFromTheMouth

02/16/2026

We’ve helped thousands of people fix bad breath, and these are the three myths we hear most often 👇

🧴 Mouthwash fixes it
It may freshen temporarily, but it also wipes out good bacteria and can allow odor-causing microbes to grow back stronger if balance isn’t restored.

🪥 Brushing alone solves it
Brushing cleans teeth, but most bad breath comes from tongue bacteria and inflamed gums where sulfur-producing microbes live.

🫃 It’s from your stomach
In reality, bad breath almost always starts in the mouth. True digestive causes are rare and usually come with other symptoms.

Bad breath isn’t a hygiene problem. It’s a microbiome balance problem.

You can test your saliva, see your bacterial profile, and get a personalized care plan to fix it at the source.

02/11/2026

Flossing isn’t just about cavities. It’s a daily habit that supports whole-body health.

When gums are inflamed, oral bacteria and inflammatory molecules can enter the bloodstream. Large population studies consistently show that people with periodontal (gum) disease have up to 2x higher risk of heart attack and stroke.

Researchers believe this is driven by shared immune and inflammatory pathways. Chronic oral inflammation can promote inflammation in blood vessels, accelerating atherosclerosis and cardiovascular disease.

Daily flossing helps reduce gum inflammation and disrupt harmful bacteria beneath the gumline that brushing alone often can’t reach.
Healthier gums = lower systemic inflammation = better heart health.

02/10/2026

Should you kiss your baby? It depends.

Babies aren’t born with oral bacteria. In the first months of life, their mouths are colonized mostly by parents and caregivers through kisses, shared utensils, and even cleaning pacifiers with your mouth.

That means your oral health becomes their starting point. A balanced microbiome can help set them up for healthier teeth and gums. Dysbiosis can pass along risk too.

Your mouth is one of your baby’s first microbial inheritances. 🦷🧬

PreventiveHealth BristleHealth

02/09/2026

New research out of Johns Hopkins is adding to the growing evidence that what happens in your mouth doesn’t stay in your mouth.

Researchers found that Fusobacterium nucleatum a common gum-disease–associated oral bacterium can travel through the bloodstream, reach breast tissue, and promote tumor growth and spread in lab models. This same microbe has already been linked to colorectal cancer.

Here’s the key nuance: this bacterium exists in most healthy mouths. The issue isn’t presence. It’s dysbiosis. When the oral microbiome falls out of balance, certain bacteria can become overactive, drive inflammation, and potentially impact the rest of the body.

Even more interesting: cells with BRCA1 mutations appeared especially vulnerable to these bacterial effects.

This research is early and not in humans yet, but the takeaway is powerful: oral health is systemic health. Caring for your gums and microbiome isn’t just about cavities. It may be part of reducing broader disease risk.

OralSystemicConnection HealthFromTheMouth

Address

Oakland, CA

Website

http://bristlehealth.com/

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